// function open() {
//     console.log('open');
//     document.getElementById('close').style.display = 'none';
//     document.getElementById('open').style.display = 'block';
// }
//
// function close() {
//     console.log('close');
//     document.getElementById('close').style.display = 'block';
//     document.getElementById('open').style.display = 'none';
// }

window.onload = function () {
    console.log( 111 );
    var openNode = document.getElementById( 'open' );
    var closeNode = document.getElementById( 'close' );
    openNode.onclick = function () {
        closeNode.style.display = 'block';
        openNode.style.display = 'none';
    };
    closeNode.onclick = function () {
        openNode.style.display = 'block';
        closeNode.style.display = 'none';
    };
};